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A time-accurate adaptive grid method and the numerical simulation of a shock-vortex interactionA time accurate, general purpose, adaptive grid method is developed that is suitable for multidimensional steady and unsteady numerical simulations. The grid point movement is performed in a manner that generates smooth grids which resolve the severe solution gradients and the sharp transitions in the solution gradients. The temporal coupling of the adaptive grid and the PDE solver is performed with a grid prediction correction method that is simple to implement and ensures the time accuracy of the grid. Time accurate solutions of the 2-D Euler equations for an unsteady shock vortex interaction demonstrate the ability of the adaptive method to accurately adapt the grid to multiple solution features.
Document ID
19900012208
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Bockelie, Michael J.
(NASA Langley Research Center Hampton, VA., United States)
Eiseman, Peter R.
(Columbia Univ. New York, NY., United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1990
Subject Category
Mathematical And Computer Sciences (General)
Report/Patent Number
NAS 1.60:2998
L-16727
NASA-TP-2998
Accession Number
90N21524
Funding Number(s)
PROJECT: RTOP 505-90-21-02
CONTRACT_GRANT: AF-AFOSR-0307-86
CONTRACT_GRANT: NAG1-427
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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